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Date: Mon, 26 May 2008 18:17:11 +0400
From: Eygene Ryabinkin <rea-fbsd@codelabs.ru>
To: Kris Kennaway <kris@FreeBSD.org>
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Cc: FreeBSD Current <freebsd-current@freebsd.org>
Subject: Re: est: CPU supports Enhanced Speedstep, but is not recognized.
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Kris, good day.

Sun, May 25, 2008 at 08:42:05PM +0200, Kris Kennaway wrote:
> For the past few months some of my machines have reported at boot:
> 
> cpu0: <ACPI CPU> on acpi0
> est0: <Enhanced SpeedStep Frequency Control> on cpu0
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 722072206000722
> device_attach: est0 attach returned 6
> p4tcc0: <CPU Frequency Thermal Control> on cpu0
> cpu1: <ACPI CPU> on acpi0
> est1: <Enhanced SpeedStep Frequency Control> on cpu1
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 722072206000722
> device_attach: est1 attach returned 6
> p4tcc1: <CPU Frequency Thermal Control> on cpu1
> ...
> (for every CPU).
> 
> They were not previously this verbose.  What is going wrong?

Any chance that you have upgraded your BIOS or modified ACPI tables?
This error message is present already for two years or so.  What
CPUs do you have?  I assume it is on -CURRENT?

The message comes from sys/i386/cpufreq/est.c:1066, revision 1.16.
And your trouble most probably comes from est_acpi_info() that does
not return the list of frequencies.  I am seeing this for the
dual-core Intel CPUs, but only the second core is not recognized,
the first one is OK.
-- 
Eygene